Under the Australian Consumer Law there are obligations for businesses to provide proof of transaction to consumers for goods or services valued at $75.00 or more.

Proof of transaction for the supply of goods or services to a consumer is a documetn that states the:

• supplier of the goods or service;
• supplier's ABN, if they have one;
• supplier's ACN, if they have one but do not have an ABN;
• date of supply;
• goods or services supplied to the consumer; and,
• price of the goods or services.

Examples of proof of transaction are:

• GST tax invoice;
• cash register receipt;
• credit or debit card statement;
• handwritten receipt;
• lay-by agreement; or,
• confirmation or receipt number provided for a telephone or internet transaction.

Consumers must also be provided with an itemised bill if they request one.  The supplier must give the consumer the itemised bill, without charge, within seven days of the request.  It must be expressed in plain language, legible and clear.

A consumer can ask for an itemised bill that shows:

• how the price was calculated;
• the number of labour hours and the hourly rate, if relevant; and,
• a list of the materials used and the amount charged for them, if relevant.

This request must happen within 30 days of whichever happens later:

• the services are supplied; or,
• the consumer receives a bill or account from the supplier for the supply of the services.